Lillian wants to buy a digital camera for $143.00. she baby-sits for $2.75 an hour. so far she has worked a total of 30 hours. how many more hours does she need to work to have enough to buy the camera?

For what values of x is x2 + 2x = 24 true?

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?

Ithink i know it but i want to be sure so can you me out ?